Valve.



J. .I.v COLL.

VALVE.

APPLICATION FILED MAR. 19. 1914.

1,152,664, I .PatentedSept. 7, 1915.

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" VALVE.

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Specification or Letters IEatent.

Patented Sept. '3, 1915.

Application filed March 19, 1914. Serial No. 825,827.

To all whom it may concern:

Be it known that 1, JOHN J. COLL, a citizen of the United States, residing at Reno, in the county of l l ashoe and State of Nevada, have invented certain new and useful improvements in Valves, of which the following is a specification.

My invention relates to valves, and with regard to certain more specific features thereof to air valves associated with the carbureter or" internal combustion engines, althougl'i it is to be understood that it is of course capable of other applications.

Que of the objects of the present inven; tion is to provide a simple and practical valve capable of quick, accurate and convenient adjustment under varying conditions.

A further object is to provide a commercially practical valve especially adapted for use with carburetors for internal combustion engines which will be cheap to manufacture.

A further object is to provide a highly e'hcient valve of the above character capable of both automatic and manual adjustment.

The invention accordingly consists in the features of construction, combination of elements and arrangements of parts which will be exemplified in the device hereinafter described, and the scope of the application of which will be indicated in the following claims.

In the accompanying drawings wherein is shown one of various possible embodimerits of the invention, Figure 1 is a vertical sectional view of the valve in closed position; Fig. 2 is a similar view with the valve in automatic openposition; Fig. 3 is view with the valve wide open; 5 and 6 are transverse sectional on the lines l, 4, 5, 5, and 6, 5, y of Fig. 2; Fig. 7 is a sectional re view oi one of the parts.

cent the clash-board of-the vehicle and unbunilar reference characters denote corre-.

der the hood in either upright or horizontal position, and has one end connected with the manifold of the gas engine at a point immediately above the carburetor. Thevalve is operated. and controlled by means of a flexible wire or light cable leading from the valve stem to an actuating member or lever adjacent the steering wheel, in convenient reach or the operator, in such manner that it may be quickly operated and locked in adjusted position at any desired point. As these features are all well known to those familiar with the art, it is believed thata detail illustration and discussion thereof is unnecessary.

Referring now to the accompanying drawing, and more particularly to Fig. 1, denotes a valve casing, which may be made in one or two parts, as desired, although a single integral casing as herein shown is believed to be preferable on account of its cheapness of manufacture. This valve casing is divided into two chambers, and in the present modification will be referred to as the outer chamber 11 and the inner cham- I ber 12. These chambers it will be noteda're slightly difi'erent in diameter and form a Immecentral intermediate shoulder 13. I diately above this shoulder are provided a plurality of openings or air inlets 14. At

the bottom of the casing-is a threaded nut 15 coactmg with'the inner wall of the easing at a point 16, and provided with internal threads 17, where it may be connected by means of a suitable pipe to the manifold of the gas engine. This nut 15 has an upend of valve. stem 23. Thc'valve stem is also provided with an enlarged portion'24c,

-adapted to slide in the upper chamber of casing and to maintain the needle in a position concentric with the valve-seat of piston. The upper-part of this enlarged portion 24 forms a seat for one end of a coil spring 25, the opposite end of which bears against the closed end of the casing. The upper part of the stem 23 has an opening or eyelet 27, to which is connected a-wire so wardly projecting portion 18 of slightly.

or cord leading to-the operating lever. This constitutes a means for manually adjusting the valve, as will be hereinafter explained.

The piston 20, shown more clearly in Fi 7, is provideo with. a-rel'luced portion 28, and openings orcut away portions .29. This construction will reduce the friction of the piston as it slides baclc and forth in the casing, and also permits the dust, dirt, or lubricant which might otherwise collect therein to escape into the casing.

It is well known to those familiar with the art, that inorder to obtain complete combustion. of gasolene a proper proportion of air is required. .lt is also well known that the action .of an uatic v lves be comes more or less im proportionately as they raise or low in altitude, and that it becomes necessar change the adjustment of the valves to correspond with the changes of altitude, and. for this and other reasons I have devised a valve herein de scribed that may be adjusted quickly and accurately, so as to advance or retard the supply of air to the Clk -ee desireu,without the necessity of adjusting; screws or removing parts to gain access to the carluueter. The valve not only automatic in its action, but may also be manually opened to admit the free admission of air throu h the piston, This feature is illustrated in :lr it mav be closed. entirely so Ls} prevent the aimission of air. This valve is illustrated in Fig. l,

The operation of the vulveissubstantially ll s: Before starting the engine the val e, readjusted to a closed position by means of lever adjacent to stecringwheel, here re mentioned. In. this position the supply of air is limited, and a rich mixture of gas usually desired in starting is obtained, vi heu z, greater amount of air is required, the valve stem 33, is gradu raised 1.: of said lever, and res i be the proper adjustis raised spring tionately as the the tensi 1a 19 is increased or (loci-ca; i. This iucrea or decrease of spring tension governs L automatic movement of the valve piston; The cone shaped end of stem regulates the amount of air permitted to pass through the valve opening in the upper end of the piston. I

While the valve is shown in vertical position in the drawin it is obvious that it may be arranged horizontally with relation to the dash board of the vehicle.

The c0il-spring sitiatcd in the upper ihambcr of valve is made so as to embody strength sullicicnt to "oi-co thev stem down to a closed position or the vali and by this means the stem is curried down to any prop lion- V desn'cu pom Oi atoly the f ature of the In a valve ularly adapted for use with internal combustion engines of motor vehicles.

Having thus described my invention what I claim as new and desire to secure by Lettors Patent is-- I 1. in a valve mechanism, in combination, a casing;- having an inner chamber and an outer chamber, a hollow piston forming a fluid passage and provided with a valve seat in its upper end and adapted to move in the inner chamber, a spring extending within the piston and adapted to actuate the same, and a collar formed. at the junction of said chambers adapted to limit the upward move meut of said piston.

In a valve mechanism, in combination,

casing having an inner chamber and an outer chamber, a hollow piston forming a fluid passage and provided with a valve seat in itsvupper end and adapted to move in the inner chamber, a collar formed at the junction of said chambers adapted to limit the upward movemei said piston, a nut adapted to close th omend of the inner chamber having upwardly extending central portion 3. rminc; a seat, and a spring extending within the piston and seated at its lower end on th extended central portion of the nut.

mechanism, in combination, a casing having an inner chamber an outer chamber, a hollow piston forming a fluid passage and provided with a valve seat in its upper end and adapted to move in the inner chamber, a collar formed at the junction of said chan'll'lers adapted to limit the upward movement of said. piston, a nut adapted to close the lower end of the inner chamber provided with on internal threaded portion. adapted. I connect the valve to the cap; and having an upwardly extending central portion forming a sat, and a spring extending within the piston and seated at it, ower end on the extended central portion of nut.

4. In a valve mechanism, in combination, a casing having an inner chamber and an outer chamber, a hollow piston forming a lluid passage and provided with a valve seat in its upper end and adapted to move in the inner number, a spring extenoing: within the pis on and adapted to actuate the same, and a collar formed at the junction of said chambers adapted tolimittheupwardmovemoot of said piston, a slidable stem adjustably mounted in the outer chamber and hav mg a couoshapod lower end adapted to ci'luoc'e the valve seat in said piston.

. In a. valvc mccl'uui in com ination, h i and an m er i orming a i to co-act with means to Me and having a valve seat and adapted e in the inner chamber, a collar intera .,'!te said chambers forming a stop to the'upward movement ofsaid' iston, tairyinlets in the casin above said co I ar, 9. 'igeprin extending; the piston and 311p ,to forcethe same upwardly, a slidjibllbifitem mounted in the outer chamber and 'providedjwith a cone-shaped lower. end 3.0. adapted to engage the valve seat in the isitonand having its olziposite end exten g "through the upper en 1 ber and a sprmg surrounding said stem .ada pted'to cause its lower end to seat I in the lston, and manually-operated means finad iusting the tension of said spiral 82mg.

of said outer cham- 6. In a valve mechanism, in combination, a casing formed with an inner and'an outer chamber, a hollow Just-on forming a fluid Passage and adapte for vertical "movement 1n said inner chamber and formed with a reduced wall intermediate its ends and-with openin s through the lower portion of said wall, w ereby to reduce frictlon and to prevent the accumulation of matter between it FRANK MGGQOGAN, H. W. BROWN.

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